Bizarre Patents
A method of swing on a swing is disclosed, in which a user positioned on a standard swing suspended by two chains from a substantially horizontal tree branch induces side to side motion by pulling alternately on one chain and then the other.
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| Number | Title | Issue Date |
| 7335207 | Minimally invasive cup impactor A method and apparatus for implanting a prosthetic through a less invasive procedure. Generally, an instrument is provided to allow for a torque transfer along a non-linear line. Therefore, an incline can be provided without obstructing the view of a user using the ... | 02/26/2008 |
| 7299799 | Gas manifold assembly with a mounting device in a cooking appliance The gas manifold assembly (1) is adapted to a cooking appliance for supplying the burners (21) thereof, and is equipped with various taps (C1-C4) of the rotary type, installed on a elongated tubular-shaped manifold conduit (2), whi... | 11/27/2007 |
| 7004843 | Flexible universal joint sub connection for down hole mud motor method and apparatus A mud motor universal joint assembly that includes a pair of adjacent cylindrical joints having threaded connection means at one end and interlocking jaws at the other, each cylindrical joint having an internal blind tapered bore within the interlocking jaw portion ... | 02/28/2006 |
| 7004946 | Acetabular cup impactor An acetabular cup impactor particularly suited for minimally invasive surgical procedures includes a handle, a shaft assembly and a coupler connectable to an acetabular cup. The shaft assembly includes a hollow outer shaft and a flexible drive shaft disposed in the ... | 02/28/2006 |
| 6364772 | Disconnect for high-speed rotating shafts A self-actuating thermal disconnect disengages two coaxially aligned shafts if equipment driven by one of the shafts overheats. The disconnect uses the centrifugal force of a molten material as the principal actuation. The disconnect end of a drive shaft ... | 04/02/2002 |
| 6302797 | Flexible drill pipe In the invention a flexible drill pipe comprising a plurality of short tube sections assembled end to end. Each short tube section having the same number and type of saw tooth shaped gear teeth cut around the circumference of each end of the short tube se... | 10/16/2001 |
| 6257987 | Stackable transmission shaft A stackable transmission shaft includes a plurality of cylindrical members each having a top formed with a diametrical projection, a bottom formed with a diametrical recess, and a center formed with an axial through hole, the projection having an inverted... | 07/10/2001 |
| 6142878 | Flexible coupling with elastomeric belt A flexible shaft coupling device having two hubs with teeth extending from each hub toward the other hub. The teeth are in parallel alignment and spaced from each other. There are projections on a flexible elastomeric belt which fill the gaps between adja... | 11/07/2000 |
| 6059664 | Drive element A drive element (10) is provided for coupling together rotatable shafts (12) and (14). The shafts (12) and (14) are able to rotate about their respective longitudinal axes (12A) and (14A). Additionally, the shafts (12) and (14) can pivot relative to each ... | 05/09/2000 |
| 5768656 | Drive transmission apparatus A drive transmission apparatus includes a first gear for transmitting a driving force to a first rotatable body, a second gear for transmitting the driving force to a second rotatable body and a third gear to which the driving force is transmitted from a ... | 06/16/1998 |
| 5267482 | Speed reducing device for electrical equipment A speed reducing device employs dampers which are provided for power transmission from a worm wheel engaged with a worm gear to an output shaft of the device so as to absorb shocks. The device does not require a metallic plate to which the dampers are adh... | 12/07/1993 |
| 5248283 | Transmission A vehicle transmission has two shafts parallel to one another. At least one of the shafts is formed of two partial shafts which are in alignment and axially spaced apart. A torsion shaft then connects the two for rotation with each other, but prevents tra... | 09/28/1993 |
| 4526555 | Drive coupling assembly The drive coupling assembly, which is adapted to drivingly connect together a drive member mounted for rotation about a first axis and a driven member mounted for rotation about a second axis generally coaxially with the first rotational axis, has identic... | 07/02/1985 |
| 4472154 | Drive arrangement for transferring torque between two non-aligned shafts A drive arrangement is disclosed which provides for the transfer of torque between two non-aligned shafts. The drive arrangement includes an intermediate shaft having outwardly projecting claws secured to each end thereof which are engageable in a positiv... | 09/18/1984 |
| 4449956 | Constant-velocity universal joint In a constant-velocity universal joint, the rotary motion to be transmitted from the driving shaft to the driven shaft through the medium of rotary members disposed between the opposed lateral contact surfaces of the adjacent yokes of the driving shaft an... | 05/22/1984 |
| 4393728 | Flexible arm, particularly a robot arm A flexible arm particularly a robot arm comprising a plurality of elements engaging each other and being arranged in a series, said elements being interconnected via cables and if desired a power transferring actuating device. The purpose of the invention... | 07/19/1983 |
| 4362520 | Flexible enclosed shaft This invention is a heavy-duty flexible shaft that accommodates for misalignments between an input and output shaft. The flexible shaft is comprised of a multiplicity of hollow, individually fabricated, interfitting members housed in a tubular, bendable s... | 12/07/1982 |
| 4331003 | Flexible coupling A coupling of the "Tracta" joint type comprises a driving member rotatable about a first axis, a driven member rotatable about a second axis, and two intermediate members for operatively coupling the driving member to the driven member. The improvement co... | 05/25/1982 |
| 4312193 | Torque transfer device for flexible shaft couplings A sporadical torque transfer device for yielding element flexible shaft couplings of the tubular type, the device including first and second sleeves which have a ring of internal spline teeth at one end and circumferentially spaced jaw teeth at the opposi... | 01/26/1982 |
| 4257161 | Dry-shaving apparatus A dry-shaving apparatus comprising a circular shear plate; a circular cutting member associated with and rotatable relative to the shear plate; mechanism to effect rotation of the cutting member; and a rotatable spindle tiltably coupled at one end to said... | 03/24/1981 |
| 4062412 | Flexible shaft drilling system In an apparatus for drilling long holes in the surface of a rock bed for installation of roof bolts where the working distance perpendicular to the surface is limited, a flexible, segmented shaft drill string is fed along a curved path to a mechanism posi... | 12/13/1977 |
| 3952547 | Method and means for accurately aligning the axes of shafts in pump assemblies or the like The accuracy of axial alignment of rotary shafts which are connected to each other by face gears is determined by micrometer screws which are moved into contact with annular control surfaces of the shafts. The control surfaces are normal to the axes of th... | 04/27/1976 |
